STATION.--01451000 LEHIGH RIVER AT WALNUTPORT, PA
LOCATION.--Lat 40`45'25", long 75`36'12", Northampton County, Hydrologic Unit 02040106, on left bank 0.3 mi upstream from highway bridge at Walnutport, and 0.4 mi upstream from Trout Creek.
DRAINAGE AREA.--889 square miles.
PERIOD OF RECORD.--October 1946 to current year.
GAGE.--Water-stage recorder, crest-stage gage, and heated tipping bucket precipitation gage. Datum of gage is 349.53 ft above North American Vertical Datum of 1988. Satellite and landline telemetry at station. Prior to October 15, 2022, datum published as 350.27 ft above National Geodetic Vertical Datum of 1929.
COOPERATION.--Funding for the operation of this station is provided by the U.S. Army Corps of Engineers, Philadelphia District, the Pennsylvania Department of Environmental Protection, and the U.S. Geological Survey.
REMARKS.--Flow regulated by Wild Creek Reservoir, Penn Forest Reservoir, Francis E. Walter Reservoir, and Beltzville Lake.

The 15-minute precipitation data for this station are temporary and will only be displayed for 120 days. Time series of 1-hour or cumulative daily values will NOT be available for retrieval following the 120-day display period. Although the instrumentation is calibrated at least once a year, the temporary classification means that documented routine inspections and other quality assurance measures are not performed that would make the data acceptable for archival, retrieval, or future use in general scientific or interpretive studies.

GAGE HEIGHTS OF IMPORTANCE.-
Supplied by USGS: Maximum recordable gage height (stage sensor operational limit) - 22.2 ft; Data transmitter operational limit - 23.6 ft;
Supplied by NWS: Action stage-7.5 ft, at 6 ft, minor flooding begins downstream at Catasaqua and Hokendaqua; Flood stage-8 ft; Moderate flood stage-12 ft, at 13 ft, flooding begins just downstream from the Slatington Walnutport Bridge; Major flood stage-16 ft;